To determine which bike is faster, we need to compare their average speeds.

The average speed of Bike A is calculated by dividing the distance covered (145 km) by the time taken (1.5 hours):

Average speed of Bike A = 145 km / 1.5 hours = 96.67 km/h

The average speed of Bike B is calculated by dividing the distance covered (200 km) by the time taken (2 hours):

Average speed of Bike B = 200 km / 2 hours = 100 km/h

Comparing the average speeds, we can see that Bike B has a higher average speed of 100 km/h compared to Bike A’s average speed of 96.67 km/h. Therefore, Bike B is faster.